noun, feminine/e.tʁɛn/plural: étrennes
the first sale of the day made by a shopkeeper, merchant etc.; the first time something is used/worn/done; New Year's gift; Christmas present (especially when talking to a child)
“Et que veux-tu pour tes étrennes?” — And what would you like for Christmas?
Inherited from Old French estreine, inherited from Latin strēna (“good omen, New Year's gift”). Compare Portuguese estreia and Spanish estrena.